Evidence map›Paper›PMID 24223898›Full record

ArticlePloS one2013

A novel electrocardiographic index for the diagnosis of diastolic dysfunction.

Mehdi Namdar, Patric Biaggi, Barbara Stähli, Bernhard Bütler, Rubén Casado-Arroyo, Danilo Ricciardi, Moisés Rodríguez-Mañero, Jan Steffel, David Hürlimann, Christian Schmied and 8 more

Abstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Electrocardiographic characteristics in patients with heart failure and normal ejection fraction: A systematic review and meta-analysis.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2020
    Pooled it
  3. Trial
  4. Review
  5. Article
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  8. Subtle QRS changes are associated with reduced ejection fraction, diastolic dysfunction, and heart failure development and therapy responsiveness: Applications for artificial intelligence to ECG.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2022
    Review
  9. Article
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  12. Electrocardiogram findings at the initiation of hemodialysis and types of subsequent cardiovascular events.Hypertension research : official journal of the Japanese Society of Hypertension · 2021
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

18 authors.

Mehdi NamdarHeart Rhythm Management Centre, Cardiovascular Division, UZ Brussel - VUB, Brussels, Belgium ; Cardiovascular Centre, Cardiology, University Hospital of Zurich, Zurich, Switzerland ; Service de Cardiologie, Hôpitaux Universitaires de Genève, Geneva, Switzerland.
Patric Biaggi
Barbara Stähli
Bernhard Bütler
Rubén Casado-Arroyo
Danilo Ricciardi
Moisés Rodríguez-Mañero
Jan Steffel
David Hürlimann
Christian Schmied
Carlo de Asmundis
Gian-Battista Chierchia
Andrea Sarkozy
Thomas F Lüscher
Rolf Jenni
Firat Duru
Walter J Paulus
Pedro Brugada

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough the assessment of diastolic dysfunction (DD) is an integral part of routine cardiologic examinations, little is known about associated electrocardiographic (ECG) changes. Our aim was to investigate a potential role of ECG indices for the recognition of patients with DD. METHODS AND

resultsECG parameters correlating with echocardiographic findings of DD were retrospectively assessed in a derivation group of 172 individuals (83 controls with normal diastolic function, 89 patients with DD) and their diagnostic performance was tested in a validation group of 50 controls and 50 patients. The patient group with a DD Grade 1 and 2 showed longer QTc (422 ± 24 ms and 434 ± 32 ms vs. 409 ± 25ms, p<0.0005) and shorter Tend-P and Tend-Q intervals, reflecting the electrical and mechanical diastole (240 ± 78 ms and 276 ± 108 ms vs. 373 ± 110 ms, p<0.0001; 409 ± 85 ms and 447 ± 115 ms vs. 526 ± 119 ms, p<0.0001). The PQ-interval was significantly longer in the patient group (169 ± 28ms and 171 ± 38ms vs. 153 ± 22ms, p<0.005). After adjusting for possible confounders, a novel index (Tend-P/[PQxAge]) showed a high performance for the recognition of DD, stayed robust in the validation group (sensitivity 82%, specificity 93%, positive predictive value 93%, negative predictive value 82%, accuracy 88%) and proved a substantial added value when combined with the indexed left atrial volume (LAESVI, sensitivity 90%, specificity 92%, positive predictive value 95%, negative predictive value 86%, accuracy 91%).

conclusionsA novel electrocardiographic index Tend-P/(PQxAge) demonstrates a high diagnostic accuracy for the diagnosis of DD and yields a substantial added value when combined with the LAESVI.

Indexed as

DiastoleAdultAgedEchocardiography, DopplerElectrocardiographyFemaleHumansLogistic ModelsMaleMiddle AgedMultivariate AnalysisReproducibility of ResultsRetrospective StudiesROC CurveVentricular Dysfunction, Left

Identifiers

PMID24223898
PMCPMC3818461

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.